Tik Tok, can the other party see the private letter swearing?

Private letter private letter, as the name implies, is private, and ordinary people can't see it. Unless the other party reports the contents of your private letter, you can see it if you really want to inquire. In Tik Tok, private messages are private chats. Private messages can't be seen by others, only the person you sent them to can see them, which is similar to the private message function in Weibo.